From okarlsson@panix.com Wed Jan 10 08:38:34 1996 Path: ashpoly!cascade!bigsur!panix!okarlsson From: okarlsson@panix.com (Olga Karlsson) Newsgroups: comp.sys.m68k Subject: [SPECULATION] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan10.083834.5958@panix.com> Date: Wed, 10 Jan 1996 08:38:34 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank. Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. Schematic diagram in ASCII uploaded to ftp.ashford-poly.edu:/pub/telecom-archives/twin68_array.asc. -- Olga Karlsson "Row 14. No joke." Atari Falcon 030 / NEXTSTEP 3.3 From ngarcia@berkeley.edu Wed Jan 10 19:11:34 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!berkeley!ngarcia From: ngarcia@berkeley.edu (Nadine García) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan10.191134.7697@berkeley.edu> Date: Wed, 10 Jan 1996 19:11:34 GMT References: <1996Jan10.083834.5958@panix.com> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996Jan10.083834.5958@panix.com>, okarlsson@panix.com (Olga Karlsson) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. > The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank. Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? Top-posters will be placed in my ~/.killfile without notice. -- Nadine García "There are 14 nodes and only 10 countries. Count again." Commodore Amiga 500 (1MB OCS) / Linux 1.2.13